CN1139954C

CN1139954C - Button type switch device

Info

Publication number: CN1139954C
Application number: CNB991004256A
Authority: CN
Inventors: 我妻透; 吉; 山贺一吉
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 1998-02-25
Filing date: 1999-02-11
Publication date: 2004-02-25
Anticipated expiration: 2019-02-11
Also published as: MY133441A; CN1227394A; TW420812B; KR100300373B1; JP3767996B2; KR19990072463A; JPH11242921A

Abstract

The invention comprises a fixed contact, a movable contact component, an operating button, and a lid coving an opening portion except for projecting portions of the operating button. The movable contact component is made of an elastic conductive material, and where both ends are respectively bent in an approximately U-shape and in a same direction to compose a first and a second bend portion. The first bend portion is acted as a movable portion having a movable contact which is formed on an end portion and is sliding connected to the fixed contact, and a pivot portion is formed on an end portion of the second bend portion. When pressing the operating button, the movable portion falls with the pivot portion as a centre so that the movable contact is slided on the bottom of a frame body to be contacted or not contacted with the fixed contact.

Description

Button type switch device

The button type switch device that the present invention relates to a kind ofly to be used for testing agency etc., utilizes the elasticity control operation button of moving contact to move up and down.

Owing to make by the rubber-like metal, usually remain on the moving contact of the state of being switched on or switched off by this elasticity, with the elasticity of utilizing this moving contact, make action button keep the button type switch device of propradation simple in structure always, size is little, operation feeling is good, therefore is widely used in the various e-machines.

Existing button type switch device for example, can be enumerated at Japan Patent and disclose the device of being announced in No. 168645/1994 communique, No. 203380/1996 communique of patent disclosure or No. 329779/1996 communique of patent disclosure etc.As an example in these existing examples, represented the device in No. 168645/1994 communique of patent disclosure among Fig. 6.

Fig. 6 is the key diagram of an example of the existing button type switch device of expression.

As shown in Figure 6, this device has the framework that roughly is batch box shape 21 that is disposing fixed

contact

22,23 on the portion bottom surface within it, has the movable contact member 25 of moving part 24 and compresses the action button 26 of the moving part 24 of this movable contact member 25.This movable contact member 25 is made by the rubber-like conductive metal sheet, and it bends to and approximately is the U font, constitutes a sweep.This sweep is exactly the moving part 24 that becomes stress point.This movable contact member 25 is to constitute like this: its end engages with the sidewall of framework 21, form fulcrum part 27, and its other end forms moving contact part 28, decline along with above-mentioned moving part 24, slide to right along shown in Figure 6, leave fixed contact 22, so that contact with fixed contact 23.Under the state that the action button shown in Fig. 6 26 is not depressed, the moving part of movable contact member 25 relies on the elasticity of himself to rise, and 28 of moving contact parts are left fixed contact 23, and contact with fixed contact 22; Meanwhile, action button 26 also rises.

29 fixed contacts for constituting on the bottom surface of recess 21b that is embedded in the supporting part 21a on the medial surface that is made in framework 21.The fulcrum part 27 of movable contact member 25 always contacts with this fixed contact 29.30 is a lid, and it is supporting action button 26, and it can freely be moved up and down, but this action button 26 is not deviate from from framework 21.

Like this, since this button type switch device serve as reasons and have the framework 21 of fixed

contact

22,23, movable contact member 25, action button 26, and cover that 30 such four members constitute, therefore having size can be less, and advantage such as the operation feeling of action button 26 is level and smooth.

When the button type switch device of above-mentioned conventional example of assembling, only need movable contact member 25 insertions are disposed in the framework 21 of fixed

contact

22,23, just passable with covering the such simple procedures in 30 covering framework tops then, but, when inserting movable contact member 25 in the framework 21, fixed contact 29 on the recess 21b bottom surface of fulcrum part 27 and supporting part 21a is contacted, moving contact part 28 is contacted with fixed contact 22, therefore, from the top direction comparison difficulty of packing into, this is a shortcoming.In addition, when fitting operation button 26 and lid 30, the movable contact member 25 that is inserted in the framework 21 is moved, like this, the rising of the action button 26 that is produced by movable contact member 25 can not be carried out smoothly, therefore, can not realize making moving contact part 28 to leave fixed contact 22, to the switching of fixed contact 23 motions.Under extreme case, when installation cover 30, might pass through action button 26, make movable contact member 25 distortion.

Above shortcoming in the button type switch device described in No. the 203380/1996th, the above-mentioned patent disclosure, exists too.In addition, in No. 329779/1996 described button type switch device of communique of above-mentioned patent disclosure, the fulcrum part of movable contact member is engaged with lever, therefore, when the fitting operation handle, might make this movable contact member distortion.

The objective of the invention is to provide a kind of assembling simple, can make movable contact member realize the button type switch device of switch change action reliably.

Another object of the present invention is will provide a kind of can increase the restoring force that movable contact member produces, can be rapidly and make the button type switch device of action button and movable contact member reinstatement reliably.

A further object of the present invention is that a kind of button type switch device that can make action button losslessly roughly be vertical up-or-down movement will be provided.

For achieving the above object, the invention provides a kind of such switching device, it has upper opening, and is provided with the rough rectangular framework of supporting part; Be configured in the fixed contact in the above-mentioned framework; Movable contact member; Be used to depress the action button of the moving part of above-mentioned movable contact member; With the lid that covers the above-mentioned upper opening part except aforesaid operations button ledge.This movable contact member is made by the rubber-like electric conducting material, and it forms two ends and bend to first and second sweeps that are roughly the U font respectively on same direction; With the moving part of above-mentioned first sweep as stress point, and on its end edge, formation can be slided on above-mentioned framework bottom, again can with the moving contact of said fixing contact sliding contact.Simultaneously, this movable contact member forms a fulcrum part also in the end of above-mentioned second sweep, and this fulcrum part is bearing on the above-mentioned supporting part free to rotately and can engages with above-mentioned supporting part.By depressing the aforesaid operations button, above-mentioned moving part can above-mentioned fulcrum be divided into center decline, and like this, above-mentioned moving contact can slide on the bottom of above-mentioned framework, contacts with the said fixing contact, does not perhaps contact.

In addition, for realizing above-mentioned another purpose, also comprise in the switching device of the present invention, forming a near jut above-mentioned second sweep that compresses above-mentioned movable contact member on the inner surface of above-mentioned lid, the restoring force of the aforesaid operations button that the moving part by above-mentioned movable contact member sends is increased.

In addition, for realizing an above-mentioned purpose again, also comprise in the switching device of the present invention, between first and second sweeps of above-mentioned movable contact member, form one towards the outstanding sweep of moving contact direction, can adjust the direction that is added in the component on this action button by this sweep.

Below, with reference to accompanying drawing embodiments of the invention are described.

Fig. 1 is the integrally-built exploded perspective view of one embodiment of the present of invention;

Fig. 2 is the part stereogram of the fulcrum part of expression one embodiment of the present of invention;

Fig. 3 is the longitudinal sectional drawing that is illustrated in the one embodiment of the present of invention under the on-state;

Fig. 4 compresses the longitudinal sectional drawing of the off-state of action button fully for representing from state shown in Figure 3 in inside;

Fig. 5 is the front view of the distortion example of expression movable contact member;

In this embodiment, the situation of getting the button type switch device with two action buttons can independently carrying out on/off action respectively as an example.

In these figure, 1 for what make with synthetic resin, and there is opening the top, roughly rectangular framework.Be provided with

guide channel

4,5 in the framework internal vertical, so that make two action buttons 2,3 mobile guide along the vertical direction.These two

guide channels

4,5, with the relative side sidewall 1a of framework 1, form the gap between the 1b.And guide channel 4 is configured in the sidewall 1a with this framework 1, and another sidewall 1c that 1b is vertical, the sidewall 1c among the 1d are on one side; Guide channel 5 then is configured in one side approaching with sidewall 1d.In addition, on the surface of the sidewall 1a of guide channel 4 side, form the otch 4a of direction extension up and down; And on the surface of the sidewall 1b of guide channel 5 side, form the otch 5a of direction extension up and down equally.As shown in Figure 3 and Figure 4, be positioned at

guide channel

4,5 and sidewall 1a, on the bottom 1e of the framework 1 of the gap location between the 1b, be the plane fixed contact 6 that disposed respectively, and vertically be provided with support projection part 1f simultaneously.In addition, the upper end of

guide channel

4,5 highlights above framework 1.

Action button 2,3 is made identical shape respectively, and the action button 2 of a side only is described here, the action button 3 of opposite side, and the structural detail identical with action button 2 represents that with identical label its explanation is omitted.Action button 2 is roughly shaft-like, is made by synthetic resin, and its first half is roughly cylindrical button part 2a, and its latter half is prismatic operation part 2b.Bottom in the side of operation part 2b forms one along the direction vertical with the length direction of action button 2, outwardly directed contact portion 2c.On the surface that forms this contact portion 2c, make an inclined surface 2d that overhang diminishes along with rising from contact portion 2c; And on the boundary member of action button 2a and operation part 2b, form an outstanding a little restricted part 2e.Contact portion 2c and restricted part 2e from the otch 4a of guide channel 4, highlight towards the direction of sidewall 1a.

The movable contact member of being made by the rubber-like conductive metal sheet 7,8 is placed on respectively in each gap between

guide channel

4,5 and sidewall 1a and the 1b.Movable contact member 7,8 is made identical shape respectively, and here, only the movable contact member 7 with regard to a side describes, and the structural detail identical with movable contact member 7 of the movable contact member 8 of opposite side represents that with identical label its explanation is omitted.Movable contact member 7 has been moving part 7a, and this moving part 7a is roughly sweep that the U font constitutes as stress point to bend to by the end with this member 7.The other end of this movable contact member 7 has by bending to and is roughly the sweep 7b that the U font constitutes.In the end of sweep 7b, be provided with a fulcrum part 7c, it is that a pair of otch respect to one another constitutes.At the end edge place of moving part 7a, form a moving contact 7a, it is by the end of moving part 7a being cut into two legs, and constitute by methods such as bending machining.As Fig. 2 at length represented, the fulcrum part 7c of movable contact member 7 was bearing in the top of the support projection part 1f of framework 1.And for example Fig. 2 expression at length like that, the front end of support projection part 1f is cut into two legs, puts between these two shank 1g by the fulcrum part 7c with movable contact member 7, can freedom joltily support this fulcrum part 7c.On the movable contact member 7 between moving part 7a and the sweep 7b, form a sweep 7e, it highlights towards the direction of this fulcrum part 7c and moving contact 7d, bends to roughly to be in the shape of the letter V.

The top lid of being made by metal or synthetic resin 9 of action button 5 covers.That is: the size of lid 9 is made from the upper end of the sidewall 1c of framework 1, by the upper surface of this framework 1, reaches the such size in top of sidewall 1d, and done that

guide channel

4,5 is highlighted, roughly rectangular opening 9a, 9b, at this opening 9a, the restricted part 2e of the action button 2,3 that the about centre in one side of 9b forms, 3e highlights, and on this lid 9, form restriction inclined plane 2d, the limiting holes 9c that 3d rises, 9d.Like this, by movable contact member 7,8 action button 2,3 of ejection upward, can be from by deviating from framework 1 and lid 9 spatial accommodations that constitute.On lid 9 inner surface, integrally form contact protrusion part 9e, 9f, they and the sweep 7b of movable contact member 7,8, the upper surface of 8b contacts, and highlights downwards.

The assembling of above such formation button type switch device is described now.At first, with each fulcrum part 7c of

movable contact member

7,8,8c puts between two shank 1g of each support projection part 1f that highlights from the bottom 1e of framework 1, thereby can freedom joltily support this movable contact member 7,8.Above-mentioned framework 1 is being positioned at

guide channel

4,5 and sidewall 1a, on the bottom 1e between the 1b, is the plane fixed contact 6 that disposing respectively.Like this, movable contact member 7,8 is in the state that remains on reliably in the framework 1.Secondly, put into action button 2,3, make the contact portion 2c of this action button 2,3, each moving part 7a of the lower surface of 3c and movable contact member 7,8, the upper surface contact of 8a.At last, close the lid 9, make

guide channel

4,5 respectively from opening 9a, 9b highlights, and makes the restricted part 2e of action button 2,3, and 3e is from limiting holes 9c, and 9d highlights, and assembling has just been finished.Because movable contact member 7,8 remains in the framework 1 reliably, therefore, during mounting cover 9, movable contact member 7,8 can not move.In addition, movable contact member 7,8 and action button 2,3 can all be packed into from the top of framework 1.

The action of above-mentioned button type switch device is described below.When action specification, put up with the switch sections of a side, promptly action button 3 one sides are described.

Fig. 3 represents the on-state of button type switch device, that is: the state do not depressed of action button 3.Under the state of Fig. 3, the fulcrum part 8b of movable contact member 8 is stuck between two shank 1g of support projection part 1f, and moving contact 8d is positioned on first fixed contact 6 by the elastic force of movable contact member 8.Under this state, because on movable contact member 8, it is the center that the bonding part with fulcrum part 8b is arranged, to the power effect of counterclockwise rotating, therefore, moving part 8a is with upwards pushing of action button 3.The upwards pushing of action button 3 owing to restricted part 3e engages with limiting holes 9d, and is stopped on the position of regulation.

When the state of Fig. 3 is depressed action button 3, movable contact member 8 is the center with fulcrum part 8b, rotates to clockwise direction.Like this, the moving contact 8d of movable contact member 8 is bent, and direction slip left on the 1e of the bottom of framework 1, leave fixed contact 6, and be positioned on the 1e of bottom, the conducting state of moving contact 8d and fixed contact 6 is removed, therefore, this push-button switch becomes off-state.In addition, because the contact protrusion part 9e on the inner surface of lid 9 contacts with the upper surface of the sweep 8b of movable contact member 8, reaction force can act on this movable contact member 8, can increase restoring force from off-state to on-state, therefore, can be rapidly and make action button 3 and movable contact member 8 return back to original state reliably.

In addition, in this embodiment, because movable contact member 7, form an end that makes separately on 8 and bent to the movable part 7a that is roughly the U font, 8a, and the other end bends to the sweep 7b that roughly is the U font, 8b, owing to utilize these two sweeps can produce load respectively, produce required load and the such load of restoring force of increase change action, therefore again, only utilize each movable contact member 7,8, by simple structure promptly, realization can be carried out the button type switch device of change action reliably.In addition, on movable contact member 7,8, also formed roughly be in the shape of the letter V crooked, towards fulcrum part 7c, 8c and moving contact 7d, the sweep 7e that the 8d direction highlights, 8e utilizes this sweep 7e, 8e, can adjust the direction that is added in the component on the action button 2,3, therefore, can make action button 2,3 lossless ground roughly do vertical up-or-down movement.

Like this, in the above-described embodiments, this switching device has upper opening, generally rectangular framework 1; Be arranged on the fixed contact 6 in this framework 1; Movable contact member 7; The lid 9 that is used to press the action button 2 of moving part 7a and covers the opening portion except the part that action button 2 highlights.This movable contact member 7 is made by the rubber-like electric conducting material, and its two ends bend to same direction respectively and are roughly the U font.It has with the moving part 7a of one end as stress point, and in the end of the sweep 7b of its other end, be provided with fulcrum part 7c, and form and on the 1e of the bottom of framework 1, to slide, again with the moving contact 7d of these fixed contact 6 sliding contacts in the end of moving part 7a.Simultaneously, a fulcrum part 7c who forms on this movable contact member 7 is bearing on the support projection part 1f that vertically is arranged in this framework 1, and it can engage with this support projection part 1f from top, and free to rotate.By depressing of action button 2, can make moving part 7a, be that the center descends with fulcrum part 7c.Because moving contact 7d can slide on the 1e of the bottom of framework 1, contacts with fixed contact 6, or does not contact; During again owing to assembling, movable contact member 7 can be located reliably, and the location can be carried out from the top of framework 1, therefore, assembles very simple.Owing to utilize moving part 7a and two sweeps of sweep 7b, can produce load respectively again, therefore, can produce the load that is used to increase required load of change action and restoring force.

According to the present invention, constituting on movable contact member makes two ends bend to roughly first and second sweeps of U font to same direction respectively, this first sweep is as the moving part of stress point, form and can on the framework bottom, slide in its end, again can with the moving contact of fixed contact sliding contact.Simultaneously, owing to form the fulcrum part in the end of second sweep, it can be bearing on the supporting part that is vertically set in the framework, and can engage and freely rotate from top with this supporting part, and therefore, movable contact member 7 can be located reliably.Because this location can be carried out from the top of framework 1, therefore, assemble very simple again.In addition,, can produce load respectively, therefore can produce the load that is used to increase required load of change action and restoring force, only utilize movable contact member, promptly can carry out reliable change action owing to utilize two sweeps.

In addition, because on the inner surface of lid, form a near jut of second sweep that compresses this movable contact member, therefore, reaction force acts is on this movable contact member, can increase restoring force from off-state to on-state, can be rapidly and make action button and movable contact member return back to original state reliably.

Have again, because between first and second sweeps of movable contact member, form one towards the outstanding sweep of moving contact direction, so can adjust the direction that is added in the component on this action button by this sweep, and action button losslessly is roughly vertically moved up and down.

Claims

1. button type switch device, it has:

The rectangular framework of upper opening, framework is provided with the supporting part that is vertically installed in inner bottom part;

Be configured in the fixed contact in the above-mentioned framework;

Movable contact member;

Action button; With

The lid of the above-mentioned opening portion of covering except the part that the aforesaid operations button is given prominence to;

Described movable contact member is made by the rubber-like electric conducting material, and the formation two ends bend to first and second sweeps that are the U font to same direction respectively, above-mentioned first sweep is as the moving part of stress point, forming one in its end can slide on the bottom in above-mentioned framework, again can with the moving contact of said fixing contact sliding contact, simultaneously, end at above-mentioned second sweep forms a fulcrum part, it is bearing on the front end of above-mentioned supporting part, can engage with this supporting part from the top, and freely rotate; Described action button is used to press above-mentioned moving part, by pressing the aforesaid operations button, above-mentioned moving part can above-mentioned fulcrum be divided into center decline, like this, above-mentioned moving contact can slide on the bottom of above-mentioned framework, contacts or does not contact with the said fixing contact.

2. button type switch device as claimed in claim 1, it is characterized by, forming a near jut above-mentioned second sweep that compresses above-mentioned movable contact member on the inner surface of above-mentioned lid, so that the restoring force of the aforesaid operations button that is given by the moving part of above-mentioned movable contact member increases.

3. button type switch device as claimed in claim 1, it is characterized by, between first and second sweeps of above-mentioned movable contact member, form one towards the outstanding sweep of moving contact direction, can adjust the direction that is added in the component on this action button by this sweep.